> 数学 >
因式分解x^3-4x^2-11x+30
人气:463 ℃ 时间:2020-01-27 07:18:04
解答
x^3-4x^2-11x+30
=x^3-2x^2-2x^2-11x+30
=x^2(x-2)-(2x+15)(x-2)
=(x^2-2x-15)(x-2)
=(x+3)(x-5)(x-2)
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版